GHSA-PH86-P8F6-F9R2 Symfony Vulnerable to Identity Spoofing via Unanchored DN Regex in X509Authenticator

Description X509Authenticator implements client-certificate mTLS authentication: the web server validates the client's certificate against a trusted CA, then passes the certificate's Subject DN Distinguished Name: a string like CN=Alice,O=Example,[email protected] to Symfony via...